McqMate
| 201. |
For RSA to work, the value of P must be less than the value of |
| A. | p |
| B. | q |
| C. | n |
| D. | r |
| Answer» C. n | |
| 202. |
In RSA, Ф(n) = _______ in terms of p and q. |
| A. | (p)/(q) |
| B. | (p)(q) |
| C. | (p-1)(q-1) |
| D. | (p+1)(q+1) |
| Answer» C. (p-1)(q-1) | |
| 203. |
In RSA, we select a value ‘e’ such that it lies between 0 and Ф(n) and it is relatively prime to Ф(n). |
| A. | true |
| B. | false |
| Answer» B. false | |
| 204. |
RSA is also a stream cipher like Merkel-Hellman. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 205. |
USENET falls under which category of public key sharing? |
| A. | public announcement |
| B. | publicly available directory |
| C. | public key authority |
| D. | public key certificate |
| Answer» A. public announcement | |
| 206. |
PGP makes use of which cryptographic algorithm? |
| A. | rsa |
| B. | aes |
| C. | des |
| D. | robin |
| Answer» A. rsa | |
| 207. |
Public key cryptography also called as________ |
| A. | asymmetric key cryptography |
| B. | symmetric key cryptography |
| C. | both a and b |
| D. | none of the above |
| Answer» A. asymmetric key cryptography | |
| 208. |
ECC stands for |
| A. | elliptic curve cryptography |
| B. | elliptic cryptography curve |
| C. | error correcting code |
| D. | none of the above |
| Answer» A. elliptic curve cryptography | |
| 209. |
Diffie-Hellman algorithm is widely known as_________ |
| A. | key exchange algorithm |
| B. | key agreement algorithm |
| C. | only a |
| D. | both a and b |
| Answer» D. both a and b | |
| 210. |
Hash function is used for________ |
| A. | message authentication |
| B. | digital signature |
| C. | both a and b |
| D. | only a |
| Answer» C. both a and b | |
| 211. |
RSA algorithm is best example of_______ |
| A. | asymmetric key cryptography |
| B. | symmetric key cryptography |
| C. | elliptic curve cryptography |
| D. | all of the above |
| Answer» A. asymmetric key cryptography | |
| 212. |
In tunnel mode, IPSec protects the ______ |
| A. | entire ip packet |
| B. | ip header |
| C. | ip payload |
| D. | ip trailer |
| Answer» A. entire ip packet | |
| 213. |
HTTPS is abbreviated as _________ |
| A. | hypertexts transfer protocol secured |
| B. | secured hyper text transfer protocol |
| C. | hyperlinked text transfer protocol secured |
| D. | hyper text transfer protocol secure |
| Answer» D. hyper text transfer protocol secure | |
| 214. |
An attempt to make a computer resource unavailable to its intended users is called ______ |
| A. | denial-of-service attack |
| B. | virus attack |
| C. | worms attack |
| D. | botnet process |
| Answer» A. denial-of-service attack | |
| 215. |
SSL primarily focuses on _______ |
| A. | integrity and authenticity |
| B. | integrity and non-repudiation |
| C. | authenticity and privacy |
| D. | confidentiality and integrity |
| Answer» A. integrity and authenticity | |
| 216. |
Pretty good privacy (PGP) is used in ______ |
| A. | browser security |
| B. | email security |
| C. | wifi security |
| D. | ftp security |
| Answer» B. email security | |
| 217. |
__________ is used for encrypting data at network level |
| A. | ipsec |
| B. | https |
| C. | smtp |
| D. | s/mime |
| Answer» A. ipsec | |
| 218. |
WPA2 is used for security in _______ |
| A. | ethernet |
| B. | wi-fi |
| C. | bluetooth |
| D. | |
| Answer» B. wi-fi | |
| 219. |
Which of the following is not a strong security protocol |
| A. | ssl |
| B. | httpl |
| C. | smtp |
| D. | sftp |
| Answer» C. smtp | |
| 220. |
TSL (Transport Layer Security) is a cryptographic protocol used for securing HTTP/HTTPS based connection. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 221. |
IPSec operates in..... different modes |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 5 |
| Answer» B. 2 | |
| 222. |
length of the IPv4 address is .... |
| A. | 32 bits |
| B. | 64 bits |
| C. | 16 bits |
| D. | 128 bit |
| Answer» A. 32 bits | |
| 223. |
Internet Key Exchange has .... phases and modes of operations |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 5 |
| Answer» C. 2 | |
| 224. |
PGP is abbreviated as |
| A. | pretty good privacy |
| B. | pretty good policy |
| C. | policy good privacy |
| D. | pretty good protection |
| Answer» A. pretty good privacy | |
| 225. |
SET stands for |
| A. | set electronic transaction |
| B. | secure electronic transaction |
| C. | simple electronic transaction |
| D. | none of the above |
| Answer» B. secure electronic transaction | |
| 226. |
Transport layer Protocol consists of ... main components |
| A. | 2 |
| B. | 1 |
| C. | 3 |
| D. | 4 |
| Answer» A. 2 | |
| 227. |
length of the IPv6 acddress is .... |
| A. | 32 bits |
| B. | 64 bits |
| C. | 16 bits |
| D. | 128 bit |
| Answer» D. 128 bit | |
| 228. |
IPSec provides ....protocols for network layer |
| A. | 7 |
| B. | 3 |
| C. | 1 |
| D. | 4 |
| Answer» A. 7 | |
| 229. |
length of the IPv6 header is.... |
| A. | 64 bits |
| B. | 16 bits |
| C. | 32 bits |
| D. | 8 bits |
| Answer» C. 32 bits | |
| 230. |
CIA triad is also known as |
| A. | nic (non-repudiation, integrity, confidentiality) |
| B. | aic (availability, integrity, confidentiality) |
| C. | ain (availability, integrity, non-repudiation) |
| D. | aic (authenticity, integrity, confidentiality) |
| Answer» B. aic (availability, integrity, confidentiality) | |
| 231. |
of information means, only authorised users are capable of accessing the information. |
| A. | confidentiality |
| B. | integrity |
| C. | non-repudiation |
| D. | availability |
| Answer» A. confidentiality | |
| 232. |
means the protection of data from modification by unknown users. |
| A. | confidentiality |
| B. | integrity |
| C. | authentication |
| D. | non-repudiation |
| Answer» B. integrity | |
| 233. |
When you use the word it means you are protecting your data from getting disclosed. |
| A. | confidentiality |
| B. | integrity |
| C. | authentication |
| D. | availability |
| Answer» A. confidentiality | |
| 234. |
When integrity is lacking in a security system, occurs. |
| A. | database hacking |
| B. | data deletion |
| C. | data tampering |
| D. | data leakage |
| Answer» C. data tampering | |
| 235. |
Why these 4 elements (confidentiality, integrity, authenticity & availability) are considered fundamental? |
| A. | they help understanding hacking better |
| B. | they are key elements to a security breach |
| C. | they help understands security and its components better |
| D. | they help to understand the cyber-crime better |
| Answer» C. they help understands security and its components better | |
| 236. |
This helps in identifying the origin of information and authentic user. This referred to here as |
| A. | confidentiality |
| B. | integrity |
| C. | authenticity |
| D. | availability |
| Answer» C. authenticity | |
| 237. |
Data is used to ensure confidentiality. |
| A. | encryption |
| B. | locking |
| C. | deleting |
| D. | backup |
| Answer» A. encryption | |
| 238. |
Data integrity gets compromised when and are taken control off. |
| A. | access control, file deletion |
| B. | network, file permission |
| C. | access control, file permission |
| D. | network, system |
| Answer» C. access control, file permission | |
| 239. |
is the practice and precautions taken to protect valuable information from unauthorised access, recording, disclosure or destruction. |
| A. | network security |
| B. | database security |
| C. | information security |
| D. | physical security |
| Answer» C. information security | |
| 240. |
From the options below, which of them is not a threat to information security? |
| A. | disaster |
| B. | eavesdropping |
| C. | information leakage |
| D. | unchanged default password |
| Answer» D. unchanged default password | |
| 241. |
Compromising confidential information comes under |
| A. | bug |
| B. | threat |
| C. | vulnerability |
| D. | attack |
| Answer» B. threat | |
| 242. |
The full form of OSI is OSI model is |
| A. | open systems interconnection |
| B. | open software interconnection |
| C. | open systems internet |
| D. | open software internet |
| Answer» A. open systems interconnection | |
| 243. |
In layer, vulnerabilities are directly associated with physical access to networks and hardware. |
| A. | physical |
| B. | data-link |
| C. | network |
| D. | application |
| Answer» A. physical | |
| 244. |
If communication between 2 people is overheard by a third person without manipulation of any data, it is called as: |
| A. | release of message content-passive attack |
| B. | traffic analysis -passive attacks |
| C. | release of message content- active attacks |
| D. | traffic analysis -active attacks |
| Answer» A. release of message content-passive attack | |
| 245. |
If communication between 2 people is overheard by a third person without extraction of any data, it is called as: |
| A. | release of message content-passive attack |
| B. | traffic analysis -passive attacks |
| C. | release of message content- active attacks |
| D. | traffic analysis -active attacks |
| Answer» D. traffic analysis -active attacks | |
| 246. |
The information that gets transformed in encryption is |
| A. | plain text |
| B. | parallel text |
| C. | encrypted text |
| D. | decrypted text |
| Answer» A. plain text | |
| 247. |
A unique piece of information that is used in encryption. |
| A. | cipher |
| B. | plain text |
| C. | key |
| D. | cipher |
| Answer» C. key | |
| 248. |
Study of creating a d using encryption and decryption techniques. |
| A. | cipher |
| B. | cryptography |
| C. | encryption |
| D. | decryption |
| Answer» B. cryptography | |
| 249. |
An attack in which the user receives unwanted amount of e- mails. |
| A. | smurfing |
| B. | denial of service |
| C. | e-mail bombing |
| D. | ping storm |
| Answer» C. e-mail bombing | |
| 250. |
In same keys are implemented for encrypting as well as decrypting the information. |
| A. | symmetric key encryption |
| B. | asymmetric key encryption |
| C. | asymmetric key decryption |
| D. | hash-based key encryption |
| Answer» A. symmetric key encryption | |
| 251. |
The procedure to add bits to the last block is termed as |
| A. | decryption |
| B. | hashing |
| C. | tuning |
| D. | padding |
| Answer» D. padding | |
| 252. |
Cryptanalysis is used |
| A. | to find some insecurity in a cryptographic scheme |
| B. | to increase the speed |
| C. | to encrypt the data |
| D. | to make new ciphers |
| Answer» A. to find some insecurity in a cryptographic scheme | |
| 253. |
Conventional cryptography is also known as or symmetric-key encryption. |
| A. | secret-key |
| B. | public key |
| C. | protected key |
| D. | primary key |
| Answer» A. secret-key | |
| 254. |
is the art & science of cracking the cipher-text without knowing the key. |
| A. | cracking |
| B. | cryptanalysis |
| C. | cryptography |
| D. | crypto-hacking |
| Answer» B. cryptanalysis | |
| 255. |
In cryptography, what is cipher? |
| A. | algorithm for performing encryption and decryption |
| B. | encrypted message |
| C. | both algorithm for performing encryption and decryption and encrypted message |
| D. | decrypted message |
| Answer» A. algorithm for performing encryption and decryption | |
| 256. |
In asymmetric key cryptography, the private key is kept by __________ |
| A. | sender |
| B. | receiver |
| C. | sender and receiver |
| D. | all the connected devices to the network |
| Answer» B. receiver | |
| 257. |
In cryptography, the order of the letters in a message is rearranged by __________ |
| A. | transpositional ciphers |
| B. | substitution ciphers |
| C. | both transpositional ciphers and substitution ciphers |
| D. | quadratic ciphers |
| Answer» A. transpositional ciphers | |
| 258. |
Cryptanalysis is used __________ |
| A. | to find some insecurity in a cryptographic scheme |
| B. | to increase the speed |
| C. | to encrypt the data |
| D. | to make new ciphers |
| Answer» A. to find some insecurity in a cryptographic scheme | |
| 259. |
Which one of the following is a cryptographic protocol used to secure HTTP connection? |
| A. | stream control transmission protocol (sctp) |
| B. | transport layer security (tls) |
| C. | explicit congestion notification (ecn) |
| D. | resource reservation protocol |
| Answer» B. transport layer security (tls) | |
| 260. |
Voice privacy in GSM cellular telephone protocol is provided by _______ |
| A. | a5/2 cipher |
| B. | b5/4 cipher |
| C. | b5/6 cipher |
| D. | b5/8 cipher |
| Answer» A. a5/2 cipher | |
| 261. |
ElGamal encryption system is __________ |
| A. | symmetric key encryption algorithm |
| B. | asymmetric key encryption algorithm |
| C. | not an encryption algorithm |
| D. | block cipher method |
| Answer» B. asymmetric key encryption algorithm | |
| 262. |
Cryptographic hash function takes an arbitrary block of data and returns _________ |
| A. | fixed size bit string |
| B. | variable size bit string |
| C. | both fixed size bit string and variable size bit string |
| D. | variable sized byte string |
| Answer» A. fixed size bit string | |
| 263. |
In the above figure from left to right, the correct order of the shaded levels are |
| A. | network level, application level, transport level |
| B. | application level, network level, transport level |
| C. | transport level, application level, network level |
| D. | network level, transport level, application level |
| Answer» D. network level, transport level, application level | |
| 264. |
In the above figure, which of the above shaded block is transparent to end users and applications? |
| A. | ip/ipsec |
| B. | ssl |
| C. | kerberos |
| D. | s/mime |
| Answer» A. ip/ipsec | |
| 265. |
In terms of Web Security Threats, “Impersonation of another user” is a Passive Attack. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 266. |
Which one of the following is not a higher –layer SSL protocol? |
| A. | alert protocol |
| B. | handshake protocol |
| C. | alarm protocol |
| D. | change cipher spec protocol |
| Answer» C. alarm protocol | |
| 267. |
In the SSL Protocol, each upper layer message if fragmented into a maximum of __________ bytes. |
| A. | 216 |
| B. | 232 |
| C. | 214 |
| D. | 212 |
| Answer» C. 214 | |
| 268. |
The full form of SSL is |
| A. | serial session layer |
| B. | secure socket layer |
| C. | session secure layer |
| D. | series socket layer |
| Answer» B. secure socket layer | |
| 269. |
Which protocol is used to convey SSL related alerts to the peer entity? |
| A. | alert protocol |
| B. | handshake protocol |
| C. | upper-layer protocol |
| D. | change cipher spec protocol |
| Answer» A. alert protocol | |
| 270. |
Which protocol consists of only 1 bit? |
| A. | alert protocol |
| B. | handshake protocol |
| C. | upper-layer protocol |
| D. | change cipher spec protocol |
| Answer» D. change cipher spec protocol | |
| 271. |
Which protocol is used for the purpose of copying the pending state into the current state? |
| A. | alert protocol |
| B. | handshake protocol |
| C. | upper-layer protocol |
| D. | change cipher spec protocol |
| Answer» D. change cipher spec protocol | |
| 272. |
In the alert protocol the first byte takes the value 1 or 2 which corresponds to _________ and _________ respectively. |
| A. | select, alarm |
| B. | alert, alarm |
| C. | warning, alarm |
| D. | warning, fatal |
| Answer» D. warning, fatal | |
| 273. |
Pretty good privacy (PGP) security system uses |
| A. | public key cryptosystem |
| B. | private key cryptosystem |
| C. | public & private key cryptosystem |
| D. | none of the mentioned |
| Answer» C. public & private key cryptosystem | |
| 274. |
Data compression includes |
| A. | removal of redundant character |
| B. | uniform distribution of characters |
| C. | removal of redundant character & uniform distribution of characters |
| D. | none of the mentioned |
| Answer» C. removal of redundant character & uniform distribution of characters | |
| 275. |
PGP offers _____ block ciphers for message encryption. |
| A. | triple-des |
| B. | cast |
| C. | idea |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 276. |
Which of the following is not a secured mail transferring methodology? |
| A. | pop3 |
| B. | ssmtp |
| C. | mail using pgp |
| D. | s/mime |
| Answer» A. pop3 | |
| 277. |
__________ is used for encrypting data at network level. |
| A. | ipsec |
| B. | https |
| C. | smtp |
| D. | s/mime |
| Answer» A. ipsec | |
| 278. |
S/MIME is abbreviated as __________________ |
| A. | secure/multimedia internet mailing extensions |
| B. | secure/multipurpose internet mailing extensions |
| C. | secure/multimedia internet mail extensions |
| D. | secure/multipurpose internet mail extensions |
| Answer» D. secure/multipurpose internet mail extensions | |
| 279. |
PGP encrypts data by using a block cipher called ______ |
| A. | international data encryption algorithm |
| B. | private data encryption algorithm |
| C. | internet data encryption algorithm |
| D. | local data encryption algorithm |
| Answer» A. international data encryption algorithm | |
| 280. |
When were VPNs introduced into the commercial world? |
| A. | early 80’s |
| B. | late 80’s |
| C. | early 90’s |
| D. | late 90’s |
| Answer» D. late 90’s | |
| 281. |
What protocol is NOT used in the operation of a VPN? |
| A. | pptp |
| B. | ipsec |
| C. | ymum |
| D. | l2tp |
| Answer» C. ymum | |
| 282. |
Which of the following statements is NOT true concerning VPNs? |
| A. | financially rewarding compared to leased lines |
| B. | allows remote workers to access corporate data |
| C. | allows lan-to-lan connectivity over public networks |
| D. | is the backbone of the internet |
| Answer» D. is the backbone of the internet | |
| 283. |
Traffic in a VPN is NOT ____________ |
| A. | invisible from public networks |
| B. | logically separated from other traffic |
| C. | accessible from unauthorized public networks |
| D. | restricted to a single protocol in ipsec |
| Answer» C. accessible from unauthorized public networks | |
| 284. |
Which layer 3 protocols can be transmitted over an L2TP VPN? |
| A. | only ip |
| B. | only ipx |
| C. | only icmp |
| D. | ip and ipx |
| Answer» D. ip and ipx | |
| 285. |
ESP (Encapsulating Security Protocol) is defined in which of the following standards? |
| A. | ipsec |
| B. | pptp |
| C. | ppp |
| D. | l2tp |
| Answer» A. ipsec | |
| 286. |
L2F was developed by which company? |
| A. | microsoft |
| B. | cisco |
| C. | blizzard entertainment |
| D. | ietf |
| Answer» B. cisco | |
| 287. |
Which layer of the OSI reference model does PPTP work at? |
| A. | layer 1 |
| B. | layer 2 |
| C. | layer 3 |
| D. | layer 4 |
| Answer» B. layer 2 | |
| 288. |
Which layer of the OSI reference model does IPsec work at? |
| A. | layer 1 |
| B. | layer 2 |
| C. | layer 3 |
| D. | layer 4 |
| Answer» C. layer 3 | |
| 289. |
Firewalls can be of _______ kinds. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 290. |
_________________ is the kind of firewall is connected between the device and the network connecting to internet. |
| A. | hardware firewall |
| B. | software firewall |
| C. | stateful inspection firewall |
| D. | microsoft firewall |
| Answer» A. hardware firewall | |
| 291. |
_________ is software that is installed using an internet connection or they come by-default with operating systems. |
| A. | hardware firewall |
| B. | software firewall |
| C. | stateful inspection firewall |
| D. | microsoft firewall |
| Answer» B. software firewall | |
| 292. |
Which of the following is not a software firewall? |
| A. | windows firewall |
| B. | outpost firewall pro |
| C. | endian firewall |
| D. | linksys firewall |
| Answer» D. linksys firewall | |
| 293. |
Firewall examines each ____________ that are entering or leaving the internal network. |
| A. | emails users |
| B. | updates |
| C. | connections |
| D. | data packets |
| Answer» D. data packets | |
| 294. |
A firewall protects which of the following attacks? |
| A. | phishing |
| B. | dumpster diving |
| C. | denial of service (dos) |
| D. | shoulder surfing |
| Answer» C. denial of service (dos) | |
| 295. |
There are ______ types of firewall. |
| A. | 5 |
| B. | 4 |
| C. | 3 |
| D. | 2 |
| Answer» B. 4 | |
| 296. |
Packet filtering firewalls are deployed on ________ |
| A. | routers |
| B. | switches |
| C. | hubs |
| D. | repeaters |
| Answer» A. routers | |
| 297. |
In the ______________ layer of OSI model, packet filtering firewalls are implemented. |
| A. | application layer |
| B. | session layer |
| C. | presentation layer |
| D. | network layer |
| Answer» D. network layer | |
| 298. |
The __________ defines the packet filtering firewall rules. |
| A. | access control list |
| B. | protocols |
| C. | policies |
| D. | ports |
| Answer» A. access control list | |
| 299. |
ACL stands for _____________ |
| A. | access condition list |
| B. | anti-control list |
| C. | access control logs |
| D. | access control list |
| Answer» D. access control list | |
| 300. |
When a packet does not fulfil the ACL criteria, the packet is _________ |
| A. | resend |
| B. | dropped |
| C. | destroyed |
| D. | acknowledged as received |
| Answer» B. dropped | |
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